Build Failure on ports-10.13_x86_64

[buildbot at macports.org]

Status:       Failure
Build slave:  ports-10.13_x86_64
Full logs:    https://build.macports.org/builders/ports-10.13_x86_64-watcher/builds/3216
Build reason: The SingleBranchScheduler scheduler named 'ports' triggered this build
Port list:    gnss-sdr volk-gnss-sdr
Subport list:
	- gnss-sdr-devel
	- gnss-sdr-next
	- volk-gnss-sdr-next
Variants:     None
Revision:     e0e2184bf83bd0ec1f1359df2fbbb9e41f066856
Build time:   0:30:13
Author:       Michael Dickens <michaelld at macports.org>

Log from failed builds:

Links to individual build jobs:
- ports-10.13_x86_64-builder #18488
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/18488
- ports-10.13_x86_64-builder #18489
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/18489
- ports-10.13_x86_64-builder #18490
  https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/18490

-- 
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MacPorts Buildbot
https://build.macports.org/